Cadence Acoustics S2-Series S2W10-D2, 10" 1200 Watt 2 Ohm DVC Subwoofer Series: S2 Series Type: Subwoofers Cone Material: Kevlar Reinforced Ultra-Stiff Paper Composite Cone, Woven Fiberglass Dustcap Surround Material: High Excursion Double Laminated Foam Surround Voice Coil: Dual Voice Coil Construction: Black Aluminum 4-Layer Voice Coil Former Damper (Spider): Quad Layer Linear Progressive Conex Spiders Magnet Construction: Ultra Saturated, High “BL� Magnetic Motor Gap